Drizzle is a specific, gentle kind of rain made up of fine, closely spaced droplets, while rain is the general word for water falling from clouds, whether it is a light shower or a downpour. A useful memory hook: all drizzle is rain, but not all rain is drizzle, in the same way a drizzle of olive oil is a thin trickle rather than a flood.
The core difference
Drizzle is a light, fine form of rain, while rain is the broader term covering any falling water, light or heavy.
- drizzle — very light rain made up of fine, closely spaced droplets: A cold drizzle settled over the city all morning.
- rain — water falling from clouds in drops, of any intensity: We got soaked walking home in the rain.
How to tell them apart
Rain is the umbrella term for any water falling from clouds, from a brief sprinkle to a heavy downpour. Drizzle is one particular flavour of rain: it falls as very fine, closely spaced droplets rather than large drops, so it feels gentler and often soaks in more slowly, even though it can go on for hours.
The two words also part ways outside the weather. Rain can describe anything falling or arriving in large quantities, as in compliments raining down on a performer, while drizzle keeps its sense of a light, thin flow, as when a recipe calls for drizzling olive oil over a salad. Recognising that difference helps with both the forecast and the cookbook.